First, have they determined a cause for your chest pain. I cannot speak to the chest pain. You and your doctor need to manage that, and some diligence with it is appropriate.
I do not have chest pain. And my risk factors for heart attack are low. I deal with anxiety mostly with light exercise. I also do my best to research my issues in depth without ruminating about it. This is one of my ways of controlling my situation, rather than letting it control me. Along these same lines, One key thing I also do is to stop all anagonists, caffeine, alchohol, unneeded stress. If symptoms can be reduced to a reasonable level, I find it much easier to relax, and I feel more in control. Be safe, but stay in charge of your life. This helps to keep a positive outlook.
One thing else. There is a lot to know about vt. But going out and getting the information removes the mystery. Some mystery is good when watching movies, not when thinking about health matters. Learning can be a source of direction, and it can help you maintain a healthy perspective.